Fathom is great for simple analytics. DataFast adds revenue attribution, is self-hostable, and starts at a lower price.
5,000 events/month free. No credit card required.
| Feature | DataFast | Fathom |
|---|---|---|
| Revenue Attribution | Built-in Stripe integration | Not available |
| Privacy-Friendly | No cookies, GDPR compliant | No cookies, GDPR compliant |
| Script Size | Under 1 KB | ~2 KB |
| Self-Hostable | Yes, open-source | No, cloud-only |
| Starting Price | $9/mo (free tier available) | $15/mo (no free tier) |
| Revenue per Visitor | Automatic calculation | Not available |
| Conversion Value Tracking | Dollar amounts per source | Goal completions only |
| Custom Events | Unlimited on paid plans | Included |
| AI Weekly Digest | Automated revenue insights | Not available |
| EU Data Isolation | Self-host anywhere | EU hosting available |
Fathom counts visitors and goal completions. DataFast connects directly to Stripe and attributes every dollar of revenue back to the traffic source, UTM campaign, and landing page that brought the customer. You see that your newsletter drives $4,200 per month while paid ads drive $1,800 — then adjust your budget accordingly. Fathom cannot provide this at any price tier.
Fathom is a proprietary, cloud-only product. DataFast is open-source and can be self-hosted on your own infrastructure. This means complete data ownership, no vendor lock-in, and the ability to run analytics behind your firewall. For teams with strict data residency requirements, self-hosting is not optional — it is a requirement that only DataFast fulfills.
DataFast starts at $9/month with revenue attribution included. Fathom starts at $15/month without revenue tracking. DataFast also offers a free tier with 5,000 events/month — enough for many side projects and MVPs. You get more features for less money, and you can try before you commit.
Yes. DataFast covers everything Fathom does — privacy-first tracking, simple dashboard, and no cookie banners — while adding revenue attribution, self-hosting, and a lower starting price. If knowing which traffic sources generate actual revenue matters to you, DataFast is the stronger choice.
DataFast starts at $9/month with a free tier (5,000 events/month). Fathom starts at $15/month with no free tier. Both offer unlimited websites, but DataFast includes revenue attribution at every paid tier while Fathom focuses only on traffic analytics.
Yes. DataFast is open-source and fully self-hostable. You can run it on your own servers for complete data ownership. Fathom is a cloud-only product with no self-hosting option. If data sovereignty is important, DataFast gives you full control.
Yes. DataFast uses no cookies, collects no personal data, and is fully GDPR, CCPA, and PECR compliant. Like Fathom, you never need a cookie consent banner. The DataFast tracking script is also smaller at under 1 KB.
Switching takes about 2 minutes. Swap the Fathom script tag for the DataFast tag, connect your Stripe account, and you immediately start seeing revenue data alongside your traffic analytics. Your historical Fathom data stays accessible in Fathom.
Fathom shows you traffic metrics: visitors, pageviews, bounce rate, and goal completions. DataFast shows all of that plus exactly how much revenue each traffic source generates. When someone from a Google ad signs up and pays, DataFast attributes that payment back to the specific ad, keyword, and landing page.